玉米、木薯及马铃薯淀粉颗粒微晶结构及性质的研究

摘要

运用广角X射线衍射分析方法对玉米、木薯及马铃薯淀粉颗粒结晶结构及常温下水的溶胀作用对淀粉颗粒不同微晶结构的影响进行了系统研究，提出在淀粉颗粒中存在着大量的介于微晶和非晶之间的亚微晶结构，并提供了在一条X射线衍射曲线图中确定微晶、亚微晶和非晶区域的方法。%In this paper the crystallinity of starch granules and the effectof swelling in water at normal temperature on starch granules were studied by weans of X-ray diffraction examination.The results indicated that there existed a kind of sub-crystal in corn,cassava or potato Starch Granules,and that there were two different types of crystalline structure in native starch granules. It was pointed out that the inner structure of native starch granules could include.non-crystal,subcrystal and crystal,and that the inner structure of any starch granules could be determined to include either one or two,or three of the three types.